In one instance I can think of, they've (M$) have actually done this. Mark Rossinoivich, wrote a program called "Rootkit Revealer", in response to Sony's deployment of rootkits in CDs as part of a DRM strategy. This was available as freeware, along with several other diagnostic programs. A few months later after the Sony incident, "Rootkit Revealer" became available at M$ downloads! I don't know the backstory, or if this is the exception that proves the rule. But, Mark's site was linked to directly M$, so both parties had to know what's going. on. Or maybe they now do in fact, now "own" Mark. Note 1; I'm not going to attermpt typing "Rossinovich twice. (Whoops I just did).